Microstrip delay line compensated for thermal phase variations

Details Microstrip delay line compensated for thermal phase variations Microstrip delay line compensated for thermal phase variations

1979-10-23

1981-10-06

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333246, H01P 900, H01P 130

Patent

active

042938309

ABSTRACT:
A delay line for microwaves, whose transfer function is subject to phase variations with changes in ambient temperature, is connected in cascade with a transmission line whose phase varies in the opposite sense. The transmission line, which may be integrated with the associated delay line in a common microstrip structure, is of such length as to maintain the overall phase shift substantially constant within a certain temperature range.

REFERENCES:
patent: 2779004 (1957-01-01), Bredall et al.
patent: 3617955 (1971-11-01), Masland
patent: 3886484 (1975-05-01), Dias et al.
patent: 4019161 (1977-04-01), Kimura et al.
patent: 4059815 (1977-11-01), Makimoto et al.
patent: 4112398 (1978-09-01), Burnett et al.
patent: 4208640 (1980-06-01), Van der Meijs
Lance-"Introduction to Microwave Theory and Measurements", McGraw-Hill, New York, 1964; Title Page and pp. 19-22.

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